Description: This function allows the user to rotate an object in the display area according to an angle specified via the keyboard. The screen axes are fixed at all times and are defined as follows:
1. Screen X - axis is the direction from the left to right of the terminal screen.
2. Screen Y - axis is the direction from the bottom to the top of the terminal screen.
3. Screen Z - axis is the direction from the screen to the user.
Usage:
The user defines the rotation by entering the angle of a particular axis. The angle is defined as positive if the rotation corresponds to a counterclockwise direction (i.e., follows the right hand rule).
1. DSI prompts:
> ENTER 3 ANGLES TO ROTATE
· The user may now enter the desired X, Y, Z angles of rotation.
Note: The functions REPEAT ROTATION and REVERSE ROTATION are especially useful after executing the above command.